Geometry

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Across
  1. 5. The study of earth's measurements
  2. 6. measures more than 90 and less than 180
  3. 7. the amount of turn between two straight lines
  4. 8. lines that run from north to south
  5. 12. A set of points that run infinitely in one direction
  6. 13. a flat surface
Down
  1. 1. measures exactly 180degrees
  2. 2. a portion of a line
  3. 3. measures exactly 90degrees
  4. 4. Runs from east to west
  5. 9. runs in one direction
  6. 10. measures less than 90 degrees
  7. 11. a location on a plane